Physics
An integrated circuit is more advantages than a coventional circuit because

If a part of the integrated circuit fails the entire circuit is simply replaced
A faulty part of a conventional circuit may be difficult to locate and repair
All listed here
They make the electric equipments more reliable and easier for servicing

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Physics
Which one of the following is not a property of electromagnetic waves?

Electromagnetic waves are transverse waves
Electromagnetic waves do not require a medium to propagate.
Electromagnetic waves do not show interference and diffraction.
Oscillating electric field and magnetic field are perpendicular to each other.

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Physics
Indicate the false statement about the resistance of a wire

It is directly proportional to the length of wire
It depends on material of wire
Resistance of metallic wire increases with increase in temperature
It is directly proportional to the area of cross-section of wire

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